Toptada 5 mg is a generic version of tadalafil, a medication used to treat male impotence (erectile dysfunction). As a phosphodiesterase 5 (PDE5) inhibitor, it works by relaxing blood vessels in the penis to increase blood flow and enable an erection when sexually aroused. Toptada 5 mg is used as a daily treatment for erectile dysfunction and benign prostatic hyperplasia (BPH).